smith



H. SMITH, Jr. VRefrigerator Building. No. 224,048.

Patented Feb. 3, 1880.

N. PETERS, PHOTOMTHOGRAFHER, WASHINGTON. Dv C.

UNITED STATES PATENT OEETCE.

" REFRIGERATOR-BUILDING.

SPECIFICATION forming part of Letters Patent No. 224,048, dated February3, 1880.

Application filed October 10, 1879.

To all whom it may concew: u

Beit known that I, HENRY SMITH, Jr., of the city of Baltimore and Stateofv Maryland, have invented certain Improvements inRefrigerating-Ghambers, of which the following is a specification; and Ido hereby declare that in the same is contained a full, clear, and exactdescription of my said invention, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

This invention has reference 'to improve- .ments in the apparatusemployed in connection with a body of ice vsituated at the upper part ofthe building wherein the refrigerating'chambers or rooms are located, toeffect a cool and dry `atmosphere in the said chambers or rooms, and onethat can be rapidly changed in temperature, as may be desired by theattendant, as will hereinafter fully appear.

In the further description of my' invention which follows reference ismade to the accompanyin g drawings, forming a part hereof, and in.which-- Figure I is a sectional elevation of a building containing twoof my improved refrigerating-chambers, and Fig. II a sectional plan ofthe same on the dotted line w y.

Similar letters of reference indicate similar parts in both views,andarrows denote the direction of the various currents of air in the pipesforming a part of the apparatus.

Aand B are the refrigerating-chambers, located in a building directlybelow a body of ice which rests upon a slatted iloor, C. A drip-pan, D,serves to collect the water result ing from the melting of the ice, andan overflow-pipe, a, conducts it, when it shall rise to a certain heightin the said pan, to any convenient place either exteriorly or interiorlyof the building. A second pipe, b, is used when the entire body of waterin the panD requires to be drawn ofi".

E is a stack designed to enforce the circulation of air-in therefrigeratingchambers, as hereinafter described. The lower end of thestack is in communication with the outer air by means of thelateralopening c, and the upper end of the stack is provided with a'suitable cap to assist in establishing the regular current in the same.

The pipe which is employed to conduct cold air to therefrigerating-chamber is represented by F, and it commences in the stackat a point preferably below the slatted floor of the icechamber, and,after extending to about the top of the ice-chamber and into the same,passes to belowrthe slatted door and branches to therefrigerating-chambers'. The draft inthe stack E is controlled by meansof a damper, d, and the inlet end of the cold-air pipe F is providedwith a similar device, c, which is operated from any convenient part ofthe building.

The building is further provided with ventilating stacks or shafts, withwhich the refrigerating-chambers are in communication, and the openingsfor this purpose are `represented by f, and the registers `by means ofwhich they may be closed by g.

Supposing the ice-chambers to be stocked with ice and the temperature ofthe air eXteriorly of the building too high for the preservation ofmeats, 8vo., the danipers d and e and the registers g are opened, whenthe air in the vertical portion of the cold-air pipe within theice-chamber falls, owing toits superior weight, and is conducted to therefrigerating-chambers. The movement of the air in the cold-air pipe isaccelerated by the draft in the stack E and the dripping of cold waterfrom the@ ice upon it and its branches, and further by passing through acold atmosphere which must necessarily be established below the slattediioor C.

rIhe cold air, upon entering the refrigeratingchamber, falls to theiioor of the same and ldisplaces the warmer body of air, which escapesby means of the openings f. This circulation of air in therefrigerating-chambers continues until thev temperature of the same isabout equal to that in the vertical portion of the coldair pipe withinthe ice-chamber, or until the damper d is closed, when it ceases. Anytemperature higher than the eXtreme one effected, as, described, andbelow that of the exterior air, may be obtained by regulating thevarious dampers and registers before alluded to. The building isprovided with doors for the introduction of "ice, and others to admit ofaccess to the different parts thereof, and the various chambers arelined with non-heat-conductin g materials to lessen the drain upon theice.

By means-of this apparatus it will be understood that the cooling-airadmitted to the re- IOO ` of pipe in the ice-chamber of a refrigerator,

arranged for that purpose into the coolingfri gerating-chambers is takenfrom the exterior of the building, the air in the ice-chamber, which maybe laden with impurities, being isolated therefrom. The drain on the iceis also much less, as only sufticientice is melted to give the requiredtemperature to the refrigerating-chambers.

I am aware that it is not new to place a coil upon which coil the icerests, and throughn which air passes to be cooled on its Way to theprovision-chamber. I am further aware that in refrigerators anair-chamber has been constructed beneath the ice-box, for cooling theL-air which enters the provision-chamber situated immediately below, andthat the air, upon entering the refrigerator, passes along a pipechamber, Where it is cooled, and by reason of its superior specificgravity falls to the bottom constructions, therefore, I do not claim;but,

Having described my invention, what I claim as new, and Wish .to secureby Letters Patent of the United States, is-

As an improvement in refrigeratin g apparatuses, the following elementsin combination, viz: the refrigerating-chambers A and B, located belowthe slatted ice-flo'or G, drip-pan *12, stack E, cold-air pipe F, andsuitable means frigerating-chambers, substantially as herein described.

A lnitestimony whereof I have hereunto subscribed my name this 8th dayof April, A. D. 1879.

HENRY sMiTH, JR.

Witnesses WM. C. N icHoLLs,

of the provision-chamber through a channel JNO. T. MADDOX.

for carrying off the warm air from the said re- Y provided at its rearfor that purpose; and such

